News / news / What is dual-frequency positioning?

What is dual-frequency positioning?

What is dual-frequency positioning?

2021-02-05

Location-based services rely heavily on accurate positioning data, and as the number of applications utilizing location data continues to rise, the need for higher positioning accuracy becomes more critical. A key element in achieving this is the accuracy of the Dual-frequency GPS tracker being used. In this context, the traditional single-frequency GPS system has limitations that can impact performance, especially in complex environments where precise location data is needed.

The Challenge with Single-Frequency GPS

GPS trackers operate by receiving satellite signals to determine their position. Most GPS trackers on the market today use single-frequency GNSS (Global Navigation Satellite System), typically relying on signals from the L1 frequency. While single-frequency GPS tracking is widely used, it has its drawbacks. The most notable issue is multipath errors, which occur when GPS signals bounce off obstacles like tall buildings, resulting in inaccuracies of up to 5 meters. This means that a GPS tracker using single-frequency positioning may fail to provide the correct location, and could, for instance, inaccurately report the vehicle’s position as being on the wrong street. These positioning errors can be detrimental, especially when precise location data is crucial for operational efficiency.

The Need for Better Accuracy: Enter Dual-Frequency Positioning

As industries demand more accurate and reliable positioning data, the limitations of single-frequency GNSS are becoming more apparent. To address this, dual-frequency GNSS technology has emerged as a powerful solution. Dual-frequency systems, which utilize both the L1 and L5 signals from GPS satellites, can significantly reduce the errors associated with multipath and other environmental factors. The L1 signal is primarily used for civilian applications, while the L5 signal is more powerful, providing greater precision and reliability.

Dual-frequency systems work by using two different frequencies to calculate the position, allowing for a more precise measurement. This reduces the effects of ionospheric delays, which are common causes of GPS inaccuracies. By combining data from both the L1 and L5 signals, the GPS receiver can correct errors more effectively, leading to better positioning accuracy.

For industries such as autonomous vehicles, drone operations, and logistics, where precise location tracking is crucial, dual-frequency GNSS is becoming indispensable. It ensures that even in challenging environments like urban canyons or dense forests, the GPS tracker can provide reliable and accurate location information.

The Future of Dual-Frequency Positioning: JimiIoT’s Dual-frequency GPS tracker

JimiIoT is at the forefront of dual-frequency GNSS technology with its upcoming L1+L5 dual-frequency positioning tracker. This tracker combines the benefits of dual-frequency GNSS to deliver improved positioning accuracy, making it an excellent choice for vehicle tracking, fleet management, and other location-based services. With its high ingress protection (IP rating), it is designed to withstand tough conditions, including exposure to dust and water, ensuring reliable operation even in harsh environments.

Additionally, the JimiIoT tracker is equipped with various input and output options, enabling connectivity with accessories such as relays, panic buttons, fuel sensors, and RFID readers. These features enhance the overall value and functionality of fleet management systems, providing better control, supervision, and monitoring capabilities. Furthermore, the tracker offers real-time alerts for various events, such as fuel theft or mechanical issues, allowing fleet managers to take immediate action.

Conclusion

Dual-frequency positioning offers a significant leap forward in GPS accuracy and reliability, solving many of the issues that plague single-frequency GNSS systems. As industries across the globe require more precise location data, the adoption of dual-frequency tracking technology will become increasingly essential. JimiIoT’s Dual-frequency GPS tracker is set to redefine fleet management and vehicle tracking, providing a level of precision and reliability that traditional GPS systems cannot match.

For more information about the JimiIoT L1+L5 dual-frequency positioning tracker, please feel free to contact us at info@jimiiot.com.

SHARE
Open chat
Hello, Welcome to JimiIOT
Can we help you?